基于FPGA的工业现场总线侦听器的设计与实现

The Design and Implementation of Industry Field Bus Sniffer Based on FPGA

分析了网络侦听在工业现场总线中的应用需求以及目前工业现场总线侦听的应用状况,在EtherCAT侦听器和网络转换网关设计的基础上提出了一种基于FPGA的总线侦听器设计方法并加以实现,采用了NCUC-Bus工业现场总线进行了侦听实验,实验结果表明所设计的侦听器能够实时地侦听总线通信链路并准确地解析侦听到的数据帧。

The need and current application status of network sniffing on the industry field bus is analyzed. Based on the sniffer of EtherCAT and the network conversion gateway, a design of bus sniffer by FPGA is proposed and implemented. Experiment with NCUC -Bus also verifies that the bus sniffer can monitor the communication link in real time and parses the frame exactly.